Hydrocarbon-burner.



PATENTED JULY 1'7, 1906.

' M. MARTIN. HYDROGARBON BURNER. APPLIUATION PILEDMARJ. 1904.

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M. MARTIN.

HYDROGARBON BURNER. APPLICATION FILED 11.1.3.2. 1904.

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MORRIS MARTIN, OF MALDEN, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO CLARENCE E. CLISBEE, OF REVERE, MASSACHUSETTS.

HYDROCARBON-BURNER.

Specification of Letters Patent.

Patented July 17', 1906.

To a/Z wh'cm, t may concern.'

Beit known that l, MORRIS MARTIN, a citizen of the United States, residing at Malden, in the county of Middlesex and State vof Mas sachusetts, have invented an Improvement in Hydrocarbon-Burners, of whichthe following description, in connection with the accompanying drawings, is a specification, like numerals on the drawings representing like parts.

This invention has for its object to provide a novel burner adapted to burn oil and which can be used in any kind or style of a furnace.

One feature of the invention is a device comprising a steamegenerating chamber containing a supply of water and constructed to be inserted into the combustion-chamber of the furnace through an opening in one wall thereof and to be supported entirely by the wall of the furnace and an oil-atomizer connected to said steam generating chamber and supported entirely thereby. The atomizer and the steam-generating chamber are so constructed that they form practically one structure and are both removable as one piece from the furnace.

Another feature of the invention relates to a novel way of trapping the water in the steam before the latter is delivered to the atomizer, so that what steam is delivered to the atomizer is practically dry steam.

Still another feature of the invention relates to a novel construction whereby the pressure of steam in the steam-generating chamber is automatically controlled.

Figure l of the drawings is a vertical sectional view through one form of my improved burner on substantially the line Fig. 2. Fig. 2 is a plan view of the steam-generating chamber shown in Fig. l, the atomizer and connections thereto being omitted. Fig. 3 is a front view of a slightly different form of steam-generating burner; and Fig. 4 is a side view thereof, one Wall of the steam-generating chamber being broken out to better show the interior construction.

The steam-generating chamber in Fig. 1 is designated generally by 3 and is adapted to be inserted through an opening in the wall 4 of the furnace or combustion-chamber, said steam-generating chamber having its front wall 5 extended beyond the body thereof to form fianges 6, which overlie the walls of the combustion-chamber and are secured thereto in any suitable way.

Extending transversely through the steamgenerating chamber is an aperture 7, through which the spray of oil from the atomizer 8 is injected into the combustion-chamber,which in Fig. l is situated at the right ofthe wall 4. l have only shown a portion of the wall 4 of the combustion-chamber, but it will be understood that said combustion-chamber may be that belonging to any suitable furnace.

The atomizer 8 may .have any suitable or usual construction, but preferably will be made similar to that illustrated and described in my copending application, Serial No. 166,542, filed July 22, 1903.` Said atomizer is connected, by means of a suitable pipe 9, with a source of oil-supply and by another pipe 10 with the upper portion of the steamgenerating chamber 3, and in operation the steam from the chamber 3 passes through the pipe 1.0 to the atomizer and by the force with which it is ejected therefrom sucks oil from the pipe 9 and throws it into the aperture 7 in the form of a spray, as usual.

l ,desire to call attention to the fact that the atomizer is connected directly to and carried by the wall 5 of the steam-generating chamber and that the latter is detachably connected to the wall of the combustionchamber, so that the atomizer and steamgenerating chamber are practically integral and can be removed from the furnace or placed therein as one member. The form of steam-generating chamber illustrated in Figs. 1 and 2 differs slightly from that shown in Figs. 3 and 4. ln the former figures said chamber has the comparatively long base portion 12 and the upright portion 13, and the aperture 7 extends through the upright portion. The reason for this particular construction will be hereinafter more fully described.

In the form of the invention shown in Figs. 3 and 4 the steam-generating chamber is not provided with the longer base portion 12, but is rectangular in shape, and the transverse aperture 7 extends completely therethrough, as above described.

In Fig. 3 the shape of the chamber is shown by dotted lines, and the full lines indicate the front walls of said chamber. Extending transversely across the steam generating IOG chamber is a horizontal partition 11, which extends from one side wall 14 thereof part way to the opposite side wall 15, and from the end of said partition a vertical partition 16 rises n early to the top of said chamber. From the upper end of the partition 16 is a horizontal partition 17, and from the end of the partition 17 another vertical partition 1S extends nearlyto the partition 1 1. The pipe 10 is connected to the steam-generating chamber above the partition 11 and below the partition 17, as seen best in Figs. 1 and 3. This arrangement of partitions forms, in effect, a trap for trapping the water in the steam, so that substantially dry steam will be admitted from the chamber 3 to the pipe 10. The normal water-level stands slightly below the partition 11, and as steam is generated said steam passes upwardly to the right of partition 16 between partition 17 and the top of the chamber and around partition 18 into the chamber inclosed by said partitions, from whence it passes to the pipe 10. Any water in the steam is thus trapped instead of being taken into the pipe 10. 19 designates a petcock connected to the bottom of the chamber inclosed by said partitions and through which any accumulation of water in the trap arrangement can be drawn off.

20 designates the pipe leading to the water-supply and through which the water is fed to the chamber.

21 designates a suitable safety-valve which can be applied to the pipe 10, if desired, or to any exposed portion of the steam-generating chamber.

In the form of the invention shown in Fig. 1 one or more heat-conducting members in theform of plugs 23 are extended through the top of the horizontal portion 12 of the steam-generating chamber, said pins or plugs extending nearly to the bottom of said chamber and above the level of the aperture 7. rIhese plugs are situated in the line of the spray of oil issuing from the aperture 7 and upon being heated by the burning oil conduct the heat into the chamber 3, and thus heat the water therein. The water is also partially heated by the temperature of the combustion-chamber and also by any combustion which takes place in the aperture 7. Any number of these plugs 23 may be used but I prefer to use a plurality of themsituated at different distances from the mouth of the aperture 7. I/Vith this construction when the pressure of steam in the chamber is comparatively small the force with which the spray of oil is thrown through the aperture 7 is not sufficient to carry the jet or yspray of oil beyond any of the pins 23 before said spray is ignited, and therefore all of said pins are directly enveloped by the vflame and yare at the hottest portion of the furnace. As

a consequence the heat is rapidly conducted by the pins into the water in the chamber 3 and steam is rapidly generated. As the pressure of steam increases the force with which the spray is delivered from the atomizer correspondingly increases, and the point where the spray ignites will recede farther and farther from the end of the aperture 7 until the ignition-point of the spray passes beyond those plugs or pins which are nearer the aperture. When this occurs, said pins begin te cool somewhat, since they are not subjected to the intense heat of the burning oil, and the effective area of the heat-conducting members is reduced. If the steampressure still continues to rise, the spray will be thrown still farther into the combustion-chamber, and other ins will be carried out of the region of the dame, and thus the area of the heat-conducting members is still further reduced, this operation continuing until the number of pins still in the region of the flame is liust sufficient to maintain the desired steam-pressure in the steam-generating chamber. In case the pressure falls the force of the issuing spray of oil is decreased and the flame region brought nearer the aperture 7 and caused to envelop more of the pins. It will thus be seen that I have provided a device which automatically regulates the amount of heat conducted to the water in the steam-generating chamber and in accordance with the steam-pressure in said chamber. To lengthen the life of the portion of the pins 23 which are subjected to the direct action of the flame, I prefer to slip over each of them a sleeve 24, of copper or suitable metal, against which the fiame acts directly. As these sleeves 24 become used up new sleeves can be substituted, thus saving the necessity of removing the pins.

In Figs. 3 and 4 I have not shown this arrangement of pins, but have made the aperture 7 sufficiently large so that the spray of oil is partially burned therein and depends upon the heat from the portion of the iiame in said aperture, together with that in the combustion-chamber, for heating the water in the steam-generating chamber. The degree to which combustion takes place in the aperture 7 depends upon the force with which the spray issues from the aperture 8, and this of course is governed by the steam-pressure, so that the same automatic control of the heat delivered to the chamber occurs in the form of the invention shown in Figs. 3 and 4 as in the form of the invention shown in Fig. 1.

27 designates priming-tubes which depend from the chamber 3 and communicate therewith, and 28 designates a priming-opening in the front 5 of the chamber and through which the torch may be inserted for heating the water in the priming-tubes, and thus quickly generates steam when it is desired to start the burner.

29 designates a mufIiing-sleeve which is se- IOO IIO

cured to the front Wall 5 of the chamber and artially incloses the end of the atomizer 8. aid mufliing-sleeve is provided with apertures through which the air is admitted to support combustion. The object of this sleeve is to prevent the hissing or whistling noise caused by thesuction of air into the aperture 7.

designates an ordinary trycock by means of which the water-level in the chamber can be determined.

In order to prevent any chips or other sediment which may be carried over by the steam from entering the pipe l0 and clogging the atomizer, I prefer to insert in the horizontal portion of said pipe a perforated sleeve 3l, which extends through the coupling 32 and over the end of the vertical portion of the pipe 10. This perforated sleeve acts as a strainer and prevents any chips from getting into the atomizer.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a device of the class described, a steam-generating chamber, an oil-atomizer, and a steam-pipe connecting the chamber to the atomizer, said chamber having within itself a steam-passage leading to the steampipe and shaped to constitute a trap for any Water in the steam.

2. In a device of the class described, a steam-generating chamber situated within the combustion-chamber, an oil-atomizer connected to said steam-generating chamber, means within said generating-chamber to trap the Water in the steam before the latter is deliveredto the atomizer, and means to draw off any water thus trapped.

3. In a device of the class described, a steam-generating chamber, an oil-atomizer connected thereto to be operated by the steam generated therein, horizontal and vertical partitions extending transversely of the steam-generating chamber and forming within it a trap through which the steam passes to the oil-atomizer.

4. A steam-generating chamber, an oilatomizer connected thereto and operating to heat the same, and partitions extending across said chamber at its upper end and arranged to form a strap through which the steam passes before it is delivered to the atomizer.

5. In a device of the class described, a steam-generating chamber supported by one wall of a combustion-chamber and having an aperture therethrough, an oil-atomizer supported by said steam-generating chamber and directed toward said aperture, a pipe connecting said atomizer to the upper end of the steam-generating chamber, and partitions extending across said chamber and forming a trap through which the steam passes before it is delivered to said pipe.

6. In a device of the class described, a steam-generating chamber, an oil-atomizer connected thereto, and he at-conducting members extending from said chamber into the path of the spray delivered from the atomizer and at right angles thereto, said members being situated at different distances from the atomizer whereby the amount of heat delivered to the water in the vsteam-generating chamber is in inverse ratio to the steam-pressure therein.

7. In a device of the class described, a steam-generating chamber, an oil-atomizer connected thereto, and he at-conducting members to conduct the heat of the flame issuing from the atomizer to the water in said steamgenerating chamber, said members being placed at different distances from the atomizer, and removable protecting-sleeves for the exposed portion of the heat-conducting members.

8. In a device of the class described, a steam-generating chamber, an oil-atomizer connected thereto, and he at-conducting members extending into the steam-generating chamber and situated at different distances from the atomizer, the projecting portion of the said members being in the path of the spray from the atomizer.

9. In a device of the class described, a steam-generating chamber, an oil-atomizer connected to said chamber, heat-conducting members situated at different distances from the atomizer and in the path of the spray therefrom, said heat-conducting members extending partially into the steam-generating chamber, and protecting-sleeves loosely mounted on the exposed ends of said members.

10. In an oil-burner, a steam-generating chamber situated Within a combustion-chamber and supported by the wall thereof, an oilatomizer connected to said steam-generating chamber, and a plurality of heat-conducting pins situated at dierent distances from the atomizer, a portion of each pin extending into the steam-generating chamber, and anotherportion thereof being in the path of the spray from the atomizer, and protectingsleeves looselyfmounted on the exposed portion of the pins.

l1. In a device of the class described, a steam-generating chamber supported from IOO one wall of a combustion-chamber, an atomerating chamber having horizontal partitions extending across the saine both above and below its steam-outlet, and vertiealpartitions forming With the horizontalpartition i a trap to trap the Water in the steam prior to Witnesses:

its delivery to the pipe leading to the oil- I LOUIS C. SMITH, atomizer. GEO. W. GREGORY.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

MORRIS MARTIN. 

